HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

An Assessment of Current and Past Concentrations of Trihalomethanes in Drinking Water throughout France

Abstract : In France, 95% of people are supplied with chlorinated tap water. Due to the presence of natural organic matter that reacts with chlorine, the concentrations of chlorination by-products (CBPs) are much higher in chlorinated water produced from surface water than from groundwater. Surface water supplies 33% of the French population. Until the 1980s, almost all surface water utilities pre-chlorinated water at the intake. Pre-chlorination was then gradually banned from 1980 to 2000. Trihalomethanes (THMs) are the only regulated CBP in France. Since 2003, THMs have been monitored at the outlet of all utilities. This study assessed current (2005–2011) and past (1960–2000) exposure of the French population to THMs. We developed an original method to model THM concentrations between 1960 and 2000 according to current concentrations of THMs, concentration of total organic carbon in raw and finished water, and the evolution of water treatments from 1960 onward. Current and past mean exposure of the French population to THMs was estimated at 11.7 µg·L−1 and 17.3 µg·L−1, respectively. In the past, approximately 10% of the French population was exposed to concentrations >50 µg·L−1 vs. 1% currently. Large variations in exposure were observed among France’s 100 administrative districts, mainly depending on the water origin (i.e., surface vs. ground), ranging between 0.2 and 122.1 µg·L−1 versus between 1.8 and 38.6 µg·L−1 currently.
Document type :
Journal articles
Complete list of metadata

Contributor : Scd Ehesp Connect in order to contact the contributor
Submitted on : Monday, April 4, 2022 - 7:02:46 PM
Last modification on : Tuesday, April 5, 2022 - 3:36:51 AM

Links full text




Magali Corso, Catherine Galey, René Seux, Pascal Beaudeau. An Assessment of Current and Past Concentrations of Trihalomethanes in Drinking Water throughout France. International Journal of Environmental Research and Public Health, MDPI, 2018, 15 (8), pp.1669. ⟨10.3390/ijerph15081669⟩. ⟨hal-03630217⟩



Record views